Penstemon 



SCROPH ULARI ACEAE 



841 



o 50 



Map 1826 



Penstemon Deamii Pennell 



6 35 



Map 1827 



Penstemon canescens (Britt.) Britt., 

 var. typicus. 



daily in fallow fields in the Illinoian drift area where it is most frequent. 

 Maine to S. Dak., southw. to n. Ala. and Tex. ; absent from the Coastal 

 Plain from Va. southw. and westw. to Ala. 



4. Penstemon alluviorum Pennell. Map 1825. This and the next species 

 are white-flowered, rarely partly purple tinged, and are restricted to our 

 southern counties. The species is local and is found in both moist and dry 

 soil, mostly on open slopes in our area. 



Along the Ohio and Mississippi Rivers and s. Ohio, s. Ind., and Ky., 

 southw. to Ark., Mo., and Tenn. 



5. Penstemon Deamii Pennell. Map 1826. This rare penstemon is local 

 or infrequent in the "knobs" of a few counties along the Ohio River. It is 

 found in poor soil in fallow fields and in open places on oak ridges. In 1932 

 it was found by Scott McCoy in rich soil in a field in the north part of 

 Indianapolis, Marion County. It is difficult to reconcile these two widely 

 different kinds of habitat for this plant. 



Ind. and 111. (Pennell). 



6. Penstemon canescens (Britt.) Britt. var. typicus Pennell. Map 1827. 

 Found locally on white oak slopes in our southeastern counties. 



S. Pa. to se. Ind. and n. Ala., thence eastw. to the Coastal Plain line. 



7. Penstemon pallidus Small. Map 1828. Infrequent to local on dry, 

 wooded or washed slopes. My specimens are mostly from the southern part 

 of the state. 



Maine, Mich., n. 111. to Iowa, southw. to Ga., Tenn., and Ark. 



8. Penstemon hirsutus (L.) Willd. Eastern Penstemon. Map 1829. 

 Restricted almost entirely to sandy, gravelly or rocky soils on the dry 

 banks or rocky bluffs along streams and about lakes. Where it is found it 

 is usually frequent to common and may be found in suitable habitats along 

 streams for miles and may be absent in intervening habitats. 



Maine to Wis., southw. to Va. and Tenn. 



